نتایج جستجو برای: non linear susceptibility

تعداد نتایج: 1818224  

Journal: :iranian journal of pathology 2012
mohammad rahbar massoud hajia mona mohammadzadeh

background and objective:  early diagnosis of streptococcus agalactiae remains difficult, since symptoms are very nonspecific. its frequency has not been completely investigated in urinary tract pathogen of pregnant ant and non pregnant women in iran. the aim of this study was determining the frequency of group b streptococci in female patients. materials and methods: a total of 11800 urine sp...

2012
Way Cherng Chen Sean Foxley Karla Miller

Introduction Susceptibility-weighted contrast in white matter is a topic of recent interest due in part to intriguing observations of signal dependence on tract orientation to B0. Non-linear GRE phase evolution has been previously reported (1,2) and the source has been proposed to be related to the underlying white matter (WM) tissue microstructure. In this study, we investigated the orientatio...

2001
Koji Hashimoto

Using recently proposed non-linearly realized supersymmetry in non-Abelian gauge theory corrected to O(α′), we derive the non-linear BPS equations in the background B-field for the U(2) monopoles and instantons. We show that these non-Abelian non-linear BPS equations coincide with the non-commutative anti-self-dual equations via the Seiberg-Witten map.

2014
E. BERNARDONI R. PETSCHEK

Large nonlinear optical electronic polarizabilities would be advantageous for a variety of devices and have been intensely studied for around three decades. This project examines the theoretical limits on the static first non-linear electronic susceptibility of a material, known as the hyperpolarizability. Numerical optimizations for a single fermion in a one-dimensional potential suggest that ...

1997
Ramesh Anishetty Rahul Basu

We develop various complementary concepts and techniques for handling quantum fluctuations of Goldstone bosons.We emphasise that one of the consequences of the masslessness of Goldstone bosons is that the longitudinal fluctuations also have a diverging susceptibility characterised by an anomalous dimension (d−2) in space-time dimensions 2 < d < 4.In d = 4 these fluctuations diverge logarithmica...

The purpose of this work is to compare the linear and non-linear kriging methods in the mineral resource estimation of the Qolqoleh gold deposit in Saqqez, NW Iran. Considering the fact that the gold distribution is positively skewed and has a significant difference with a normal curve, a geostatistical estimation is complicated in these cases. Linear kriging, as a resource estimation method, c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان 1387

چکیده ندارد.

Journal: :Magnetic resonance imaging 2013
Linda Knutsson Freddy Ståhlberg Ronnie Wirestam Matthias J van Osch

PURPOSE To evaluate whether a non-linear blood ΔR2*-versus-concentration relationship improves quantitative cerebral blood flow (CBF) estimates obtained by dynamic susceptibility contrast (DSC) MRI in a comparison with Xe-133 SPECT CBF in healthy volunteers. MATERIAL AND METHODS Linear as well as non-linear relationships between ΔR2* and contrast agent concentration in blood were applied to t...

2011
Nengjun Yi Nianjun Liu Degui Zhi Jun Li

Complex diseases and traits are likely influenced by many common and rare genetic variants and environmental factors. Detecting disease susceptibility variants is a challenging task, especially when their frequencies are low and/or their effects are small or moderate. We propose here a comprehensive hierarchical generalized linear model framework for simultaneously analyzing multiple groups of ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر 1388

چکیده ندارد.

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